259956489 has 32 divisors (see below), whose sum is σ = 381024000. Its totient is φ = 156683520.

The previous prime is 259956409. The next prime is 259956569. The reversal of 259956489 is 984659952.

It is an interprime number because it is at equal distance from previous prime (259956409) and next prime (259956569).

It is not a de Polignac number, because 259956489 - 2²⁴ = 243179273 is a prime.

It is not an unprimeable number, because it can be changed into a prime (259956409) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 744687 + ... + 745035.

It is an arithmetic number, because the mean of its divisors is an integer number (11907000).

Almost surely, 2^259956489 is an apocalyptic number.

It is an amenable number.

259956489 is a deficient number, since it is larger than the sum of its proper divisors (121067511).

259956489 is a wasteful number, since it uses less digits than its factorization.

259956489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 705.

The product of its digits is 6998400, while the sum is 57.

The square root of 259956489 is about 16123.1662213103. The cubic root of 259956489 is about 638.2148241632.

The spelling of 259956489 in words is "two hundred fifty-nine million, nine hundred fifty-six thousand, four hundred eighty-nine".